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							54 lines
						
					
					
						
							1.4 KiB
						
					
					
				
			
		
		
	
	
							54 lines
						
					
					
						
							1.4 KiB
						
					
					
				'use strict'; | 
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var GetIntrinsic = require('get-intrinsic'); | 
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var $TypeError = GetIntrinsic('%TypeError%'); | 
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var callBound = require('call-bind/callBound'); | 
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var forEach = require('../helpers/forEach'); | 
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var isLeadingSurrogate = require('../helpers/isLeadingSurrogate'); | 
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var isTrailingSurrogate = require('../helpers/isTrailingSurrogate'); | 
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var $charCodeAt = callBound('String.prototype.charCodeAt'); | 
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var Type = require('./Type'); | 
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var UnicodeEscape = require('./UnicodeEscape'); | 
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var UTF16Encoding = require('./UTF16Encoding'); | 
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var UTF16DecodeString = require('./UTF16DecodeString'); | 
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var has = require('has'); | 
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// https://262.ecma-international.org/11.0/#sec-quotejsonstring | 
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var escapes = { | 
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	'\u0008': '\\b', | 
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	'\u0009': '\\t', | 
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	'\u000A': '\\n', | 
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	'\u000C': '\\f', | 
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	'\u000D': '\\r', | 
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	'\u0022': '\\"', | 
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	'\u005c': '\\\\' | 
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}; | 
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module.exports = function QuoteJSONString(value) { | 
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	if (Type(value) !== 'String') { | 
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		throw new $TypeError('Assertion failed: `value` must be a String'); | 
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	} | 
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	var product = '"'; | 
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	if (value) { | 
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		forEach(UTF16DecodeString(value), function (C) { | 
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			if (has(escapes, C)) { | 
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				product += escapes[C]; | 
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			} else { | 
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				var cCharCode = $charCodeAt(C, 0); | 
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				if (cCharCode < 0x20 || isLeadingSurrogate(C) || isTrailingSurrogate(C)) { | 
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					product += UnicodeEscape(C); | 
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				} else { | 
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					product += UTF16Encoding(cCharCode); | 
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				} | 
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			} | 
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		}); | 
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	} | 
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	product += '"'; | 
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	return product; | 
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};
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